括约肌:环绕身体开口(如肛门或胃开口)的环状肌肉带,能收缩和松弛以维持正常生理功能。
括约肌；[医] 括约肌
括约肌:环绕身体开口(如肛门或胃开口)的环状肌肉带,能收缩和松弛以维持正常生理功能。
A ringlike band of muscle that surrounds a bodily opening (such as the anus or the openings of the stomach), constricting and relaxing as required for normal physiological functioning.
收缩以关闭开口的环状肌肉
a ring of muscle that contracts to close an opening
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Dictionary facts from ECDICT, WIKTIONARY.
